Verb
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declare legally insane
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guarantee as meeting a certain standard
"certified grade AAA meat"
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authorize officially
"I am licensed to practice law in this state"
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guarantee payment on
of checks
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provide evidence for
stand as proof of
show by one's behavior, attitude, or external attributes
"His high fever attested to his illness"
"The buildings in Rome manifest a high level of architectural sophistication"
"This decision demonstrates his sense of fairness"